Siemens 1FT7 - Page 118

Technical data and characteristic curves
4.2 Torque-speed characteristics
1FT7 Synchronous Motors
118 Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
Table 4- 22 1FT7084-AF7
Technical data Code Unit Value
Configuration data
Rated speed n
r
rpm 3,000
Number of poles 2p --- 10
Rated torque (100 K) M
r (100 K)
Nm 14.5
Rated current I
r
A 8.5
Static torque (60 K) M
0 (60 K)
Nm 16.8
Static torque (100 K) M
0 (100 K)
Nm 20
Stall current (60 K) I
0 (60 K)
A 8.5
Stall current (100 K) I
0 (100 K)
A 11
Moment of inertia (with brake) J
MotBr
10
-4
kgm
2
60.4
Moment of inertia (without brake) J
mot
10
-4
kgm
2
45.1
Optimum operating point
Optimum speed n
opt
rpm 3,000
Optimum power P
opt
kW 4.55
Limiting data
Max. permissible speed (mech.) n
max mech.
rpm 8,000
Max. permissible speed (inverter) n
max Inv
rpm 5,000
Max. torque M
max
Nm 81
Maximum current I
max
A 55
Physical constants
Torque constant k
T
Nm/A 1.82
Voltage constant k
E
V/1,000 rpm 116
Winding resistance at 20 °C R
ph
Ω 0.34
Rotating field inductance L
D
mH 6
Electrical time constant T
el
ms 18
Mechanical time constant T
mech
ms 1.4
Thermal time constant T
th
min. 55
Shaft torsional stiffness c
t
Nm/rad 65,100
Weight with brake m
MotBr
kg 25.1
Weight without brake m
Mot
kg 20.8
Recommended Motor Module 6SL112-TE21-8AA
Rated inverter current I
r Inv
A 18
Maximum inverter current I
max Inv
A 36
Max. torque at I
max Inv
M
max Inv
Nm 58